When I was in Germany working ,I was told on day1 this is the only time we talk in English after today all your orders each day will be in German, I still have my German book which I took to work each day .
ie (Door-keeper in german is Pfortner. (Come with me is Kommen Sie mit.
Bath is Bad, Broom is Besen.

(You cannot speak to the manager at the moment= Sie Konnen Herrn Direktor jetzt nicht sprechen. He has no time= Er hat keine Zeit.Please get the interpreter= Holen Sie den Dolmetscher. Pay attention =Pessen Sie auf.